924Board.org

[Raceboy]

Made 924 Carrera GTS replica tach/boost gauge out of 924S/944 tach with MPG gauge. Porsche also used same hardware, just different electronics and faceplate. I had the custom backround made and printed onto UV resistant matte surface. Later may do it properly with silkscreen print.

I used 911 speedo needle (it is longer on the opposite side and matches 924S MPG gauge needle better than original needle).

Click for a photo: https://scontent-arn2-1.xx.fbcdn.net/v/t1.0-9/13151995_1034961566582857_957268573368076216_n.jpg?oh=dcef919a7964e882105f17f30cd66cb9&oe=57E6998D
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'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[ideola]

That is *way* cool!

How did you do the boost sensing part?
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erstwhile owner of just about every 924 variant ever made

[Raceboy]

I left it like it is, VEMS is controlling the needle. But lot is ahead, I want to get it working with original MPG hardware, last resort is to use separate 924 tach circuitry outside of the tach housing (bulky and not so elegant solution).
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[Raceboy]

As a comparison, here's original GTS tach:

https://scontent-arn2-1.xx.fbcdn.net/v/t1.0-9/11188302_831200203625662_8474099734312981792_n.jpg?oh=2e18e5e2f2f3bbe15cb0da572432170b&oe=57DBD947
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[ideola]

Brilliant, Peep. I want one!
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erstwhile owner of just about every 924 variant ever made

[morghen]

Way cool, i'd love one like that but to work without VEMS
I made a speedo that fits inside the 924 dash and looks like the 924 one but uses the 944 gearbox sensor instead.

Was planning to use that early tacho to try to fit a boost gauge and do a GTS replica tacho but you beat me to it

https://goo.gl/photos/yQFjASpwXLRPv6Vx9
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https://www.the924.com

[Paul]

Glad you got it to work, it's been a year since you received it, I was beginning to wonder...
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

[Raceboy]

I focused on it again about a month ago after I had other priorities during winter

Thanks Paul!
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[WEASEL149]

Very cool!
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1979 UK 932

[Dutch924-racer]

Great, good work!
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937 trackday car
Series 2 engine
951S turbo and intercooler
Fast road camshaft
Forge recirculation valve + boost controller

[Magnus]

Very nice!!
Do you know how to modify the 924 tach to work with a Link ecu, beeing a high lewel tach it doesnt work for me...
Thanks

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931 -81 20vt Restomod build in progress...

[Raceboy]

I use regular low level output which just has 1k pullup to 12v, it is already built inside ECU.

You can just use some 1k resistor and connect it between tach wire and 12v, should work.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[gegge]

Where did you get the tachodial made?

http://www.heiler-tachodesign.de

or

http://neutec-tacho-design.de/
_________________
Carl Fredrik Torkildsen

924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs

[Raceboy]

My good friend designed and drawed it (he is a designer my profession), I just gave him 924S tach for dimensions and sent GTS tach photo and purchased the font used on these tachs (that cost ~20 euros).

When the vector drawing was finished I contacted another friend of mine who works in advertising company and she printed the dials on matte UV resistant sticker.

I will probably make a new set with a bit smaller numbers and when I am satisfied maybe will print it on the spare 944 tach face in silkscreen print like original.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[ideola]

Pix missing...raceboy, can you fix the links?
_________________
erstwhile owner of just about every 924 variant ever made